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		<a class="header-logo header-affix-hide margin-left-no margin-right-no" data-offset-top="213" data-spy="affix">博士的选取器</a>
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                博士的选取器                </h1>
                <p>时间限制：10s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：256MB</p>			</div>
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                                <h3>题目描述</h3><p><div>浏览到好图好句的时候，为了避免被删帖、封图、和谐，博士会掏出他的选取器，将</div>
<div>好图好句框住，然后Ctrl+C，Ctrl+V。博士从初一开始坚持到现在，已经有2GB了。在反复</div>
<div>地与吧主斗争之后,博士总结出了经验。</div>
<div>1).对于一篇帖子，可以从上至下分成N个片段，每个片段不可分割，且只有序号相邻的片</div>
<div>段才相邻。</div>
<div>2).每次框选只能框选连续一段片段[L,R]，而且这连续一段片段的总字符量不能超过LIMIT，</div>
<div>否则会出错。</div>
<div>3).对于每次框选与复制，耗时只与这连续一段片段中字符量最大的那一个片段有关，而且</div>
<div>满足正比例函数关系。为了让题目简单，规定耗时等于字符量。</div>
<div>4).两次框选之间的时间间隔可以视为0。</div>
<div>正在博士总结完经验的时候，他瞅到了一篇掺杂大量好图好句的帖子。于是，一场新</div>
<div>的战争爆发了&hellip;&hellip;&hellip;&hellip;战局紧张，博士想知道他的最小耗时是多少。</div>
<div></div></p><hr/><h3>输入格式</h3><p><div>第一行两个整数N和Limit。N&lt;=300000</div>
<div>接下来的N行，每行一个整数，代表第I个片段的字符量</div>
<div></div></p><hr/><h3>输出格式</h3><p><div>仅一行，为博士的最小耗时</div>
<div></div></p><hr/><h3>样例输入</h3><pre>8 17
2
2
2
8
1
8
2
1</pre><hr/><h3>样例输出</h3><pre>12
{解释：222/818/21，2+8+2=12}</pre><hr/><h3>提示</h3><p>没有写明提示</p><hr/><h3>题目来源</h3><p>没有写明来源</p>
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